It sounds like Real Caribe is going to be where the stage and most of the spring breakers are from what I've been hearing. That is pretty far down the strip from Omni/Oasis, right? If anyone can find some Cancun 2011 facebook groups, you might get a better sense of where people are staying.
I don't know where that rumor came from. Jason checked with the person running Student City Cancun (I'm guessing Terry). The stage will still be at Oasis.